New FSM v24r1 - PowerPoint PPT Presentation
Title: New FSM v24r1
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New FSM v24r1
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Major Changes
- Problem
- 1 CU 1 smiSM process 1 Ctrl Manager
- So Many CUs gt Too much memory used
- Solution
- New Concept Logical Units LU
- A Logical Unit can be seen as a light weight
Control Unit - To be used at the bottom levels of a Tree (just
above the DUs). - One Ctrl Manager for all DUs in a system
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Types of FSM Nodes
- CU Control Unit
- Can be Included, Excluded, etc and Taken in
stand-alone mode - corresponds to one smiSM process
- LU - Logical Unit
- Can contain children, but not of type CU
- Can be Enabled/Disabled (can not run in
stand-alone) - Corresponds to an object within an smiSM
- Obj - Logical Object
- Basically a Logical Unit without children
- DU - Device Unit
- A tree leave corresponding to a "real" device in
PVSS - Can be Enabled/Disabled (can not run in
stand-alone) - Behaviour defined via PVSS scripts (instead of
SML code)
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Logical Unit Configuration
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Logical Unit Operation
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DU Ctrl Scripts
- Before 1 Ctrl Manager per CU
- Now 1 Ctrl Manager per System
- Drawback
- PVSS doesn't allow dynamic reloading of libraries
(at the moment) - So when modifying a device unit script it is
necessary to "Stop ALL" and restart the (sub)tree
for the new scripts to be taken into account.
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Implications for Users
- Should be backward compatible, except
- Changes in Libraries
- fwFsmTree didn't change.
- But there are some new functions
- fwFsmTree_addMajorityNode (for example)
- fwCU HAS changed
- Would like to change more (can I ?)
- Changes in the main panel fwUi.pnl
- Slight changesgt if users have their own, please
update it. - Details in http//clara.home.cern.ch/clara/fw/FwF
SM_v24r1.readme.txt
